I.to laugh aloud, laugh immoderately.
I. Lit. (class. but rare): “famulae furtim cachinnant,” Lucr. 4, 1176; 1, 919; 2, 976: ridere convivae; “cachinnare ipse Apronius,” Cic. Verr. 2, 3, 25, § 62; Suet. Vesp. 5; Aur. Vict. Epit. 28.—With the acc. of that which one laughs at: “exitum meum cachinnant,” App. M. 3, p. 132, 25.—*